AFS: Fix lock imbalance

Don't unlock on vfs_rejected_lock path in afs_do_setlk, since the lock
is unlocked after abort_attempt label.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/afs/flock.c b/fs/afs/flock.c
index 210acaf..3ff8bdd 100644
--- a/fs/afs/flock.c
+++ b/fs/afs/flock.c
@@ -432,7 +432,6 @@
 	list_del_init(&fl->fl_u.afs.link);
 	if (list_empty(&vnode->granted_locks))
 		afs_defer_unlock(vnode, key);
-	spin_unlock(&vnode->lock);
 	goto abort_attempt;
 }